The truncated position of the longitudinal steel bar in the reinforced concrete beam is at the point where the steel bar is fully utilized.
A: 正确
B: 错误
A: 正确
B: 错误
举一反三
- The truncated position of the longitudinal steel bar in the reinforced concrete beam is at the point where the steel bar is fully utilized. A: 正确 B: 错误
- Under a certain long-term load, concrete would creep. In the reinforced concrete axial compressive members: A: Creep increases the compressive stress of concrete. B: The compressive stress of concrete and steel bar keeps unchanged. C: Creep decreases the compressive stress of concrete and increases the compressive stress of steel bar. D: Creep increases the compressive stress of concrete and decreases the compressive stress of steel bar.
- Reinforced concrete has steel bars that are placed in the concrete to carry tensile forces.
- A reinforced concrete rectangular beam of C40 grade concrete is reinforced with HRB400 grade steel bars in tension. Given that [img=14x23]17de816843b92c0.png[/img] is 1.71[img=62x27]17de81684ecebb0.png[/img] and fy is 360[img=62x27]17de81684ecebb0.png[/img] the minimum reinforcement ratio of longitudinal tensile reinforcements should be ( ). A: 0.18% B: 0.19% C: 0.20% D: 0.21%
- In conventional reinforced concrete, the high tensile strength of steel is combine with concrete's great ________________ to form a structural material that is strong in both ________ and ________.